DSA_DUP_DH(3)

📦 version 4.4.0, in alpine 3.24, arch rolling

💖 NAME 💖

okay bestie, you're on DSA_DUP_DH(3) from the Library Functions Manual, and this page is about DSA_dup_DH — create a DH structure out of DSA structure. slay. ✨

✨ SYNOPSIS ✨

library “libcrypto” #include <openssl/dsa.h>

DH *
DSA_dup_DH(const DSA *r);

🦋 DESCRIPTION 🦋

DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. That's the whole vibe, no cap. 💅

🌸 RETURN VALUES 🌸

DSA_dup_DH() returns the new DH structure or NULL on error. If you need the error codes, grab them with ERR_get_error(3). 🫶

🌈 SEE ALSO 🌈

👑 HISTORY 👑

DSA_dup_DH() first appeared in OpenSSL 0.9.4 and has been available since OpenBSD 2.6. iconic behavior, honestly. ⭐

💀 CAVEATS 💀

Be careful to avoid small subgroup attacks when using this. like, fr fr, keep that in mind. 🙈

mwah 💋 this page is from Debian, dated June 8, 2025, and it's DSA_DUP_DH(3) — bye bestie! 🎀

📦 where this page comes from